Marinković S, Milisavljević M, Kovacević M
Surg Neurol. 1986 Oct;26(4):349-59. doi: 10.1016/0090-3019(86)90135-7.
Interpeduncular perforating branches were found in all 69 examined posterior cerebral arteries. They varied in number from 1 to 10, with an average of 2. They arose directly from the posterior cerebral artery (47.8%), from the collateral branches of the posterior cerebral artery (30.3%), or by their own common stems (88.4%). Their extracerebral segments varied from 100 to 750 microns in diameter (average, 321 microns). They gave off collateral branches to the cerebral peduncle, posterior perforated substance, oculomotor nerve, and mammillary bodies. Intracerebral segments had proximal and distal portions. The mean diameter of the former was 254 microns, and of the latter, 227 microns. The perforating arteries were divided into short interpeduncular and long mesencephalic and diencephalic vessels. Anastomoses among them were noticed in four-fifths of the cases. Despite this fact, the perforating arteries must be preserved during operations on aneurysms in the interpeduncular fossa.
在所有69条被检查的大脑后动脉中均发现了脚间穿支。其数量从1条到10条不等，平均为2条。它们直接起源于大脑后动脉（47.8%）、大脑后动脉的分支（30.3%）或通过其自身的共同干（88.4%）发出。其脑外段直径从100微米到750微米不等（平均321微米）。它们向大脑脚、后穿质、动眼神经和乳头体发出分支。脑内段有近端和远端部分。前者的平均直径为254微米，后者为227微米。穿动脉分为短的脚间动脉和长的中脑及间脑动脉。五分之四的病例中发现它们之间存在吻合。尽管如此，在脚间窝动脉瘤手术中仍必须保留穿动脉。
